JPH09150237A - Manufacture of mold - Google Patents

Manufacture of mold

Info

Publication number
JPH09150237A
JPH09150237A JP7333921A JP33392195A JPH09150237A JP H09150237 A JPH09150237 A JP H09150237A JP 7333921 A JP7333921 A JP 7333921A JP 33392195 A JP33392195 A JP 33392195A JP H09150237 A JPH09150237 A JP H09150237A
Authority
JP
Japan
Prior art keywords
mold
block
shape
blocks
producing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7333921A
Other languages
Japanese (ja)
Other versions
JP3114159B2 (en
Inventor
Koichi Matsuura
孝一 松浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebara Corp
Original Assignee
Ebara Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ebara Corp filed Critical Ebara Corp
Priority to JP07333921A priority Critical patent/JP3114159B2/en
Priority to US08/757,235 priority patent/US20010001893A1/en
Priority to DE19649428A priority patent/DE19649428B4/en
Priority to KR1019960058839A priority patent/KR970025780A/en
Priority to BR9604635A priority patent/BR9604635A/en
Priority to CN96120867A priority patent/CN1084002C/en
Publication of JPH09150237A publication Critical patent/JPH09150237A/en
Priority to HK98101152A priority patent/HK1002176A1/en
Application granted granted Critical
Publication of JP3114159B2 publication Critical patent/JP3114159B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C23/00—Tools; Devices not mentioned before for moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
    • G05B19/4099—Surface or curve machining, making 3D objects, e.g. desktop manufacturing
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/35—Nc in input of data, input till input file format
    • G05B2219/35047—Design tools in pairs, to be used together
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/35—Nc in input of data, input till input file format
    • G05B2219/35062—Derive mating, complementary, mirror part from computer model data
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45204—Die, mould making
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49007—Making, forming 3-D object, model, surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49995—Shaping one-piece blank by removing material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/304088—Milling with means to remove chip

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Devices For Molds (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To eliminate the processes and carry out precise work even for a fine and complicated shape by inputting data on the dimension and the shape of a mold to an automatic control working machine to execute working. SOLUTION: The data related to the shape and the dimension of the three- dimensional mold is stored in a computer 1, and based on these stored data, the driving of the working machine 2 is controlled. In the working device 2, a suction pipe 9 for sucking and removing powdery and granular body of sand, etc., produced accompanying cutting of a block 4 is arranged at a specified position of a working table 5 and connected with a vacuum pump. By this constitution, it is prevented that the worked surface is flawed by insertion of the cut sand between a tool 7 and a block 4.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】この発明は、金属を鋳造する
ための鋳型を製造する方法に関し、特に造型用模型を必
要としない鋳型の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a mold for casting metal, and more particularly to a method for manufacturing a mold that does not require a molding model.

【０００２】[0002]

【従来の技術】従来、比較的複雑な形状の鋳造品を製造
する場合には、所定の材質で実物と同じ形状の原型（オ
ス型）を作成し、これをもとに鋳型を作成する工程を採
る。原型は、素材によって木型、金型、あるいは樹脂型
があるが、形状の複雑化や高寸法精度の要求などから精
密な加工機械を用いた加工する場合も多い。このように
して製造した原型の形状を砂型に転写して、固化させて
鋳型（メス型）を構成するようにしている。2. Description of the Related Art Conventionally, in the case of manufacturing a cast product having a relatively complicated shape, a process of forming an original mold (male mold) of a predetermined material and having the same shape as an actual product, and forming a mold based on the original mold. Take. The prototype may be a wooden mold, a metal mold, or a resin mold depending on the material, but it is often processed by using a precise processing machine due to the complicated shape and the demand for high dimensional accuracy. The shape of the master thus manufactured is transferred to a sand mold and solidified to form a mold (female mold).

【０００３】この転写の際には原型を取り除く必要があ
るが、鋳型を分割型とする、あるいはワックスや樹脂な
どの素材で原型を作り、砂型材料を付着させてから昇温
させて溶融あるいは燃焼させて除去するなどの方法が用
いられる。At the time of this transfer, it is necessary to remove the original mold, but the mold is divided into molds, or the original mold is made of a material such as wax or resin, and the sand mold material is attached and then heated to melt or burn. Then, a method of removing it is used.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、上記の
ような方法においては、いずれも原型を転写して鋳型を
作成するために、工程が複雑になり、また、複雑な形状
の再現性が良くないという解決すべき課題があった。特
に、比較的寸法が大きくかつ形状が複雑である場合に
は、ワックスや樹脂では強度が低くて作業性や精度が悪
く、一方、分割型とする場合に、大きな鋳型を剥離させ
る作業が困難であり、その際に細部が欠けたりすること
がある。いずれも上記のような課題が一層顕著となっ
た。この発明は、上記のような課題に鑑み、寸法が大き
くかつ形状が複雑であるような鋳造品を鋳造する場合で
も、造型用模型を必要とせず、工程を軽減して作業性良
く、かつ高度の形状再現性をもって製造することができ
る鋳型の製造方法及び装置を提供することを目的とす
る。However, in any of the above-mentioned methods, the process is complicated and the reproducibility of the complicated shape is not good because the template is transferred to form the template. There was a problem to be solved. In particular, when the size is relatively large and the shape is complicated, the strength is low with wax or resin and workability and accuracy are poor. On the other hand, when the split mold is used, it is difficult to peel a large mold. Yes, the details may be missing. In all cases, the above problems became more prominent. In view of the above problems, the present invention does not require a molding model even when casting a casting having a large size and a complicated shape, reducing the steps, improving workability, and improving the It is an object of the present invention to provide a mold manufacturing method and apparatus that can be manufactured with the above shape reproducibility.

【０００５】[0005]

【課題を解決するための手段】請求項１に記載の発明
は、粉粒体を固化させたブロックを、予め入力されたプ
ログラムに沿って工具を操作する自動制御加工機械等に
より直接に加工し、これを鋳型又は鋳型の一部とするこ
とを特徴とする鋳型製造方法である。これにより、自動
制御加工機械にデータを入力すれば、これを基に例えば
ＣＡＭと呼ばれるプログラムに沿って工具が操作され、
鋳型内面の必要な形状が、正確かつ迅速に加工される。
請求項２に記載の発明は、上記加工機械で用いられるデ
ータを、製品の寸法形状データを基にコンピュータで修
正して作成することを特徴とする請求項１に記載の鋳型
製造方法であり、製品寸法・形状に対して凝固収縮、仕
上げ代等を入力すれば、いわゆるＣＡＤと呼ばれるプロ
グラムにより正確で迅速な鋳型設計が行われ、これに沿
って鋳型加工がなされる。According to a first aspect of the present invention, a block in which powder particles are solidified is directly processed by an automatic control processing machine or the like which operates a tool according to a program input in advance. The method for producing a mold is characterized by using this as a mold or a part of the mold. As a result, if data is input to the automatic control processing machine, the tool is operated according to a program called CAM based on this,
The required shape of the inner surface of the mold is accurately and quickly machined.
The invention according to claim 2 is the mold manufacturing method according to claim 1, characterized in that the data used in the processing machine is corrected by a computer based on the dimension and shape data of the product. By inputting solidification shrinkage, finishing allowance, etc. for the product size and shape, a so-called CAD program is used to perform accurate and rapid mold design, and mold processing is performed in accordance with this.

【０００６】請求項３に記載の発明は、複数の上記ブロ
ックを加工し、これを組み合わせて鋳型とすることを特
徴とする請求項１又は２に記載の鋳型製造方法である。
請求項４に記載の発明は、上記複数のブロックの突き合
わせ面に位置決め用の凹凸を形成することを特徴とする
請求項３に記載の鋳型製造方法である。請求項５に記載
の発明は、上記複数のブロックの突き合わせ面の双方に
位置決め用の凹部を形成し、これら凹部に該凹部の双方
に嵌合する形状の位置決め部材を装着することを特徴と
する請求項３に記載の鋳型製造方法である。請求項６に
記載の発明は、上記ブロックは板状であり、２つを組み
合わせて鋳型とすることを特徴とする請求項３又は４に
記載の鋳型製造方法である。請求項７に記載の発明は、
上記ブロックは、鋳型用原料砂を圧縮強度が２０〜８０
ｋｇ／ｃｍ2 となるように固化させたことを特徴とする
請求項１ないし６のいずれかに記載の鋳型製造方法であ
る。請求項８に記載の発明は、粉粒体を固化させたブロ
ック状のワークを保持する加工台と、加工台上のワーク
を予めインプットされたプログラムに沿って機械加工す
る自動制御加工機械と、ワークの近傍に開口する粉粒体
吸引管とを有することを特徴とする鋳型製造装置であ
る。The invention according to claim 3 is the method for producing a mold according to claim 1 or 2, characterized in that a plurality of the blocks are processed and the blocks are combined to form a mold.
The invention according to claim 4 is the method for producing a mold according to claim 3, characterized in that unevenness for positioning is formed on the abutting surfaces of the plurality of blocks. The invention according to claim 5 is characterized in that recesses for positioning are formed on both of the abutting surfaces of the plurality of blocks, and a positioning member having a shape that fits into both of the recesses is attached to these recesses. It is the mold manufacturing method according to claim 3. The invention according to claim 6 is the method for producing a mold according to claim 3 or 4, characterized in that the block is plate-shaped and two are combined to form a mold. The invention according to claim 7 is
The block has a compressive strength of 20 to 80 as a raw material sand for a mold.
The mold manufacturing method according to any one of claims 1 to 6, wherein the mold is solidified so as to be kg / cm 2 . The invention according to claim 8 is a processing table that holds a block-shaped work in which powder particles are solidified, an automatic control processing machine that machines a work on the processing table according to a program that is input in advance. A mold manufacturing apparatus characterized by having a powder and granular material suction pipe opening in the vicinity of a work.

【０００７】[0007]

【実施例】以下、図１及び図２を参照して、この発明の
実施例を説明する。この実施例の方法では、図１（ａ）
に示すように、３次元的な鋳型の形状、寸法に関するデ
ータをコンピュータ１に記憶させ、この記憶データをも
とにして加工機械２の駆動を制御する。これは、広く用
いられているＣＡＭ（Computer Aided Manufacturing）
というプログラムにより行われる。形状、寸法データの
入力も、個々の数値データを人間が入力する以外に、図
面３や模型のデータを直接、間接に読み込むための種々
のデバイスやプログラムが開発・提供されているので、
それを用いれば良い。Embodiments of the present invention will be described below with reference to FIGS. According to the method of this embodiment, FIG.
As shown in FIG. 3, the computer 1 stores data regarding the shape and dimensions of the three-dimensional mold, and the drive of the processing machine 2 is controlled based on the stored data. This is a widely used CAM (Computer Aided Manufacturing)
The program is called. As for the input of shape and dimension data, in addition to human beings inputting individual numerical data, various devices and programs for directly or indirectly reading drawing 3 and model data have been developed and provided.
You can use it.

【０００８】鋳型は、鋳造される製品に対して、凝固収
縮、仕上げ代等を見込んで設計されるが、その設計作業
もＣＡＤ（Computer Aided Design）と呼ばれるプログ
ラムにより、形状をブラウン管に表示しながら行われる
ことが多い。その場合には、そのデータをそのままＣＡ
Ｍのデータとして用いることができるので、データの入
力作業を省くことができる。また、製品の設計自体をＣ
ＡＤで行なう場合、それに付随して鋳型の設計も行える
ので、手間を一層省くことができる。[0008] The mold is designed in consideration of solidification shrinkage, finishing allowance, etc. for the product to be cast, and the design work is performed by a program called CAD (Computer Aided Design) while displaying the shape on the cathode ray tube. Often done. In that case, the data is CA as it is.
Since it can be used as M data, data input work can be omitted. In addition, the product design itself is C
When AD is used, the mold can be designed in association with it, so that the labor can be further reduced.

【０００９】次に、図１（ｂ）を参照してこの発明の方
法に用いる加工装置２の実施例を説明する。この加工装
置２は、砂ブロック４を載置する加工台５の上側に橋状
の機械支持部６が設けられており、これに、ドリル、エ
ンドミル、フライス等の加工工具７を把持し、回転駆動
させるマシンヘッド８が２又は３方向に移動自在に設け
られて構成され、マシンヘッド８の移動や工具の回転を
制御するための制御装置を備えている。この加工装置２
には、ブロック４の切削に伴って発生する砂などの粉粒
体を吸引して除去する吸引管９が、加工台５の所定位置
に１又は複数設けられ、これは真空ポンプに接続されて
いる。なお、吸引管９をマシンヘッド８に取り付けてこ
れと連動させ、開口部を加工位置に近付けて確実に吸引
させるようにしてもよい。Next, an embodiment of the processing apparatus 2 used in the method of the present invention will be described with reference to FIG. This processing device 2 is provided with a bridge-shaped machine support 6 on an upper side of a processing table 5 on which a sand block 4 is placed, and grips a processing tool 7 such as a drill, an end mill, a milling cutter, and rotates it. The machine head 8 to be driven is provided so as to be movable in two or three directions, and is provided with a control device for controlling the movement of the machine head 8 and the rotation of the tool. This processing device 2
Is provided with one or a plurality of suction pipes 9 for sucking and removing powder particles such as sand generated by cutting the block 4 at a predetermined position of the processing table 5, which is connected to a vacuum pump. There is. The suction pipe 9 may be attached to the machine head 8 and interlocked therewith to bring the opening close to the processing position to ensure suction.

【００１０】次に、上記の加工装置２を用いて鋳型を作
成する方法を図２を参照して説明する。この例では、ブ
ロックは２枚の板状に形成され、その突き合わせ面をそ
れぞれ加工して上型と下型とする。ブロック４の材料や
成形方法については、通常の鋳型に必要とされる特性の
他に、切削等に際して欠け落ちたりしない程度の機械加
工性が必要であるが、特に厳しい仕様が必要ではなく、
発明者等の実験によれば圧縮強度が２０ｋｇ／ｃｍ2 以
上であれば問題がなかった。また、圧縮強度が８０ｋｇ
／ｃｍ2 以上であると機械加工の能率や工具の寿命が低
下するので、最適な範囲は圧縮強度が４０〜６０ｋｇ／
ｃｍ2 である。Next, a method of making a mold using the above-mentioned processing apparatus 2 will be described with reference to FIG. In this example, the block is formed in the shape of two plates, and the abutting surfaces thereof are processed to form an upper mold and a lower mold. Regarding the material and molding method of the block 4, in addition to the characteristics required for a normal mold, machinability that does not cause chipping during cutting etc. is required, but particularly strict specifications are not required.
According to the experiments conducted by the inventors, there was no problem if the compressive strength was 20 kg / cm 2 or more. Also, compressive strength is 80kg
/ Cm 2 or more, the efficiency of machining and the tool life will be reduced, so the optimum range is a compressive strength of 40-60 kg /
cm 2 .

【００１１】砂（粉粒体）原料としては、機械加工の能
率や工具の寿命を考慮すると、粒度を通常よりも微細に
調整した砂の方が好ましい。比較的割れ易い素材の鋳造
などの場合には、必要に応じて特殊砂粒を用いる。製造
方法としては、一般にＣＯ2型と称される粘結剤の水ガ
ラスをガスにより硬化させるガス硬化鋳型、フラン樹脂
の酸による硬化反応を利用したフラン樹脂鋳型などが好
適に用いられる。As a raw material for sand (powder or granules), sand having a finer grain size than usual is preferred in view of efficiency of machining and tool life. When casting a material that is relatively fragile, use special sand grains as needed. As a production method, a gas-curing mold for curing water glass, which is generally called a CO 2 type binder, with a gas, a furan resin mold utilizing a curing reaction of a furan resin with an acid, and the like are preferably used.

【００１２】ブロック４の突き合わせ面の端部には、位
置決めのための凹凸１０ａ，１０ｂを形成する。これ
は、ブロック４を作成するときに予め形成しておいて
も、加工機械によって鋳型面を加工する際に形成しても
よい。また、凸部１０ｂの方は、ブロック４とは別に、
例えば２つの円錐台の底部どうしを合わせた形状のもの
を予め作成しておき、ブロック４には凹部１０ａを形成
してこれを固着させて形成してもよい。このようにする
と、凸部１０ｂを加工するために突き合わせ面全体を切
削する必要がなくなる。Concavities and convexities 10a and 10b for positioning are formed at the ends of the abutting surfaces of the block 4. This may be formed in advance when the block 4 is formed, or may be formed when the mold surface is processed by the processing machine. In addition, the convex portion 10b is, apart from the block 4,
For example, a shape in which the bottoms of two truncated cones are joined together may be created in advance, and the recess 10a may be formed in the block 4 and then fixed thereto. By doing so, it is not necessary to cut the entire abutting surface to process the convex portion 10b.

【００１３】ブロック４の表面の加工は、ブロック４を
加工台５上に載置して位置決め固定し、自動制御加工機
械２により、予めインプットされたプログラムに沿って
行なわれる。工具７の交換が必要な場合は、加工装置２
自体にそのような機能を備えているものとしてもよい
が、そうでない場合には人間により順次工具交換をして
作業を継続する。湯口を含む鋳造空間を形成するように
機械加工を行った後に、必要に応じて表面を強化するた
めの表面処理を行なう。図２（ｂ），（ｃ）に示すよう
に、上下のブロック４を加工して下型４ａ、上型４ｂと
した後、図２（ｄ）に示すように、これらを位置決め用
凹凸１０ａ，１０ｂを指標として突き合わせて一体化
し、接着や締結により固定して鋳型が完成する。この例
では、上下の型４ａ，４ｂの鋳型面は突き合わせ面より
突出して形成されている。The surface of the block 4 is processed by placing the block 4 on the processing table 5 and positioning and fixing the surface of the block 4 by the automatic control processing machine 2 according to a program input in advance. When the tool 7 needs to be replaced, the processing device 2
The device itself may be provided with such a function, but if it is not, a human will successively perform a tool change to continue the work. After performing machining to form a casting space including a gate, a surface treatment for strengthening the surface is performed if necessary. As shown in FIGS. 2B and 2C, the upper and lower blocks 4 are processed into a lower mold 4a and an upper mold 4b, and then these are arranged as shown in FIG. The mold is completed by abutting and integrating 10b as an index, and fixing by adhesion or fastening. In this example, the mold surfaces of the upper and lower molds 4a and 4b are formed to project from the abutting surfaces.

【００１４】この装置においては、ブロック４の近傍に
開口する粉粒体吸引管９により砂を吸引しながら加工す
るので、切削された砂が工具７とブロック４の間に入っ
て加工された表面を傷つけることが防止される。また、
吸引管９が同時に加工に伴う粉塵をも吸引するので、作
業環境を良好に維持する。In this device, since the sand is sucked by the powder and granular material suction pipe 9 opening near the block 4, the cut sand enters between the tool 7 and the block 4, and the surface is worked. Is prevented from being damaged. Also,
Since the suction pipe 9 also sucks dust associated with the processing at the same time, a good working environment is maintained.

【００１５】この実施例の方法は、一度コンピュータ１
にデータを入力すれば、必要に応じて加工を行うことが
できるので量産も可能であるが、特に、少品種少量生産
に好適である。そして、データをＣＡＤの手法を用いて
改変したり組み合わせたりすることも容易であるので、
鋳造の条件を反映させたり、設計の微細な変更に適応さ
せることも容易である。In the method of this embodiment, the computer 1
Since data can be input as required to perform processing, mass production is possible, but it is particularly suitable for small-quantity small-quantity production. And since it is easy to modify and combine the data using the CAD method,
It is easy to reflect casting conditions and adapt to minute design changes.

【００１６】[0016]

【発明の効果】以上説明したように、この発明によれ
ば、自動制御加工機械に鋳型の寸法や形状のデータを入
力することにより、例えばＣＡＭと呼ばれるプログラム
に沿って工具が操作され、鋳型内面の必要な形状が加工
されるので、従来の工程を大幅に省略することができ
る。また、鋳型を直接加工するので、微細で複雑な形状
も正確に加工でき、しかも、従来の場合のように転写工
程を要しないので、より精密な鋳造を行なうことができ
る。結果として、寸法が大きくかつ形状が複雑であるよ
うな鋳造品を少品種少量生産する場合でも、工程を減ら
して製造コストを軽減しつつ高度の形状再現性をもって
製造することができる。As described above, according to the present invention, by inputting the data of the size and shape of the mold to the automatic control processing machine, the tool is operated according to a program called CAM, and the inner surface of the mold is operated. Since the required shape is processed, the conventional process can be largely omitted. Further, since the mold is directly processed, a fine and complicated shape can be processed accurately, and since a transfer process is not required unlike the conventional case, more precise casting can be performed. As a result, even in the case of producing a small number of small-sized castings having large dimensions and complicated shapes, it is possible to reduce the number of steps, reduce the manufacturing cost, and manufacture with high shape reproducibility.

【図面の簡単な説明】[Brief description of the drawings]

【図１】この発明の方法を実施する装置の概略を示す図
である。FIG. 1 is a schematic view of an apparatus for carrying out the method of the present invention.

【図２】この発明の方法の概略を示す図である。FIG. 2 is a diagram showing the outline of the method of the present invention.

【符号の説明】[Explanation of symbols]

１ コンピュータ ２ 加工装置 ４ ブロック ５ 加工台 ７ 加工工具 ８ マシンヘッド ９ 吸引管 １０ａ，１０ｂ 位置決め凹凸 1 Computer 2 Processing Device 4 Block 5 Processing Table 7 Processing Tool 8 Machine Head 9 Suction Tube 10a, 10b Positioning Concavo-convex

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２３Ｑ 15/00 ３０７ Ｂ２３Ｑ 15/00 ３０７Ｚ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location B23Q 15/00 307 B23Q 15/00 307Z

Claims (8)

【特許請求の範囲】[Claims] 【請求項１】 粉粒体を固化させたブロックを、予め入
力されたプログラムに沿って工具を操作する自動制御加
工機械により直接に加工し、これを鋳型又は鋳型の一部
とすることを特徴とする鋳型製造方法。1. A block obtained by solidifying powder and granules is directly processed by an automatic control processing machine that operates a tool according to a program input in advance, and is used as a mold or a part of the mold. A method for producing a mold. 【請求項２】 上記加工機械で用いられるデータを、製
品の寸法形状データを基にコンピュータで修正して作成
することを特徴とする請求項１に記載の鋳型製造方法。2. The mold manufacturing method according to claim 1, wherein the data used in the processing machine is created by modifying the data based on the dimension and shape data of the product by a computer. 【請求項３】 複数の上記ブロックを加工し、これを組
み合わせて鋳型とすることを特徴とする請求項１又は２
に記載の鋳型製造方法。3. The mold according to claim 1, wherein a plurality of the blocks are processed, and the blocks are combined to form a mold.
The method for producing a mold according to. 【請求項４】 上記複数のブロックの突き合わせ面に位
置決め用の凹凸を形成することを特徴とする請求項３に
記載の鋳型製造方法。4. The method for producing a mold according to claim 3, wherein unevenness for positioning is formed on the abutting surfaces of the plurality of blocks. 【請求項５】 上記複数のブロックの突き合わせ面の双
方に位置決め用の凹部を形成し、これら凹部に該凹部の
双方に嵌合する形状の位置決め部材を装着することを特
徴とする請求項３に記載の鋳型製造方法。5. A recess for positioning is formed on both of the abutting surfaces of the plurality of blocks, and a positioning member having a shape that fits into both of the recesses is attached to these recesses. The method for producing a mold as described. 【請求項６】 上記ブロックは板状であり、２つを組み
合わせて鋳型とすることを特徴とする請求項３又は４に
記載の鋳型製造方法。6. The mold manufacturing method according to claim 3, wherein the block is plate-shaped, and two blocks are combined to form a mold. 【請求項７】 上記ブロックは、鋳型用原料砂を圧縮強
度が２０〜８０ｋｇ／ｃｍ2 となるように固化させたこ
とを特徴とする請求項１ないし６のいずれかに記載の鋳
型製造方法。7. The method for producing a mold according to claim 1, wherein the block is made by solidifying the raw material sand for the mold so as to have a compressive strength of 20 to 80 kg / cm 2 . 【請求項８】 粉粒体を固化させたブロック状のワーク
を保持する加工台と、加工台上のワークを予めインプッ
トされたプログラムに沿って機械加工する自動制御加工
機械と、ワークの近傍に開口する粉粒体吸引管とを有す
ることを特徴とする鋳型製造装置。8. A processing table for holding a block-shaped work in which powder and granules are solidified, an automatic control processing machine for machining the work on the processing table according to a program input in advance, and a work table in the vicinity of the work. An apparatus for manufacturing a mold, comprising: a powder and granular material suction tube that opens.
JP07333921A 1995-11-29 1995-11-29 Mold manufacturing method Expired - Lifetime JP3114159B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP07333921A JP3114159B2 (en) 1995-11-29 1995-11-29 Mold manufacturing method
US08/757,235 US20010001893A1 (en) 1995-11-29 1996-11-27 Method and apparatus for manufacturing mold
KR1019960058839A KR970025780A (en) 1995-11-29 1996-11-28 Mold manufacturing method and apparatus
DE19649428A DE19649428B4 (en) 1995-11-29 1996-11-28 Method and device for producing a mold
BR9604635A BR9604635A (en) 1995-11-29 1996-11-29 Method and apparatus for making molds
CN96120867A CN1084002C (en) 1995-11-29 1996-11-29 Method and apparatus for manufacturing mold
HK98101152A HK1002176A1 (en) 1995-11-29 1998-02-13 Method for manufacturing mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07333921A JP3114159B2 (en) 1995-11-29 1995-11-29 Mold manufacturing method

Publications (2)

Publication Number Publication Date
JPH09150237A true JPH09150237A (en) 1997-06-10
JP3114159B2 JP3114159B2 (en) 2000-12-04

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Application Number Title Priority Date Filing Date
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Country Status (7)

Country Link
US (1) US20010001893A1 (en)
JP (1) JP3114159B2 (en)
KR (1) KR970025780A (en)
CN (1) CN1084002C (en)
BR (1) BR9604635A (en)
DE (1) DE19649428B4 (en)
HK (1) HK1002176A1 (en)

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KR100921805B1 (en) * 2007-11-16 2009-10-16 현대자동차주식회사 Bent processing apparatus for modeling
JP2012510372A (en) * 2008-12-30 2012-05-10 ▲機▼械科学研究▲総▼院先▲進▼▲製▼造技▲術▼研究中心 Digitizing method and equipment for large and medium sand molds
JP2017131901A (en) * 2016-01-25 2017-08-03 株式会社木村鋳造所 Method for manufacturing casting mold
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US6801817B1 (en) * 2001-02-20 2004-10-05 Advanced Micro Devices, Inc. Method and apparatus for integrating multiple process controllers
DE10141184A1 (en) * 2001-08-22 2003-03-13 Dieter Fichtner Production of investment castings comprises joining model components from a storage vessel to form a model, embedding sand in a mold box, breaking down into its constituents after removing from the mold and returning to the storage vessel
DE10156332B4 (en) * 2001-11-19 2005-09-15 Actech Gmbh Advanced Casting Technologies Giessereitechnologie Method and modular system for the rapid production of molds
DE102005023561A1 (en) * 2005-05-18 2006-11-23 Abb Patent Gmbh Method and device for producing recesses in the molding sand of a molding box
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KR100921805B1 (en) * 2007-11-16 2009-10-16 현대자동차주식회사 Bent processing apparatus for modeling
JP2012510372A (en) * 2008-12-30 2012-05-10 ▲機▼械科学研究▲総▼院先▲進▼▲製▼造技▲術▼研究中心 Digitizing method and equipment for large and medium sand molds
US8469080B2 (en) 2008-12-30 2013-06-25 Advanced Manufacture Technology Center China Academy Of Machinery Science And Technology Digital processing method and device of large or medium-size sand mold
JP2017131901A (en) * 2016-01-25 2017-08-03 株式会社木村鋳造所 Method for manufacturing casting mold
JP6489394B1 (en) * 2018-03-02 2019-03-27 株式会社小西鋳造 Method of manufacturing sand mold for casting
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JP2019150871A (en) * 2019-02-13 2019-09-12 株式会社小西鋳造 Manufacturing method of sand block

Also Published As

Publication number Publication date
BR9604635A (en) 1998-06-23
CN1158286A (en) 1997-09-03
DE19649428A1 (en) 1997-06-05
HK1002176A1 (en) 1998-08-07
CN1084002C (en) 2002-05-01
JP3114159B2 (en) 2000-12-04
KR970025780A (en) 1997-06-24
US20010001893A1 (en) 2001-05-31
DE19649428B4 (en) 2006-03-30

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